Nerdulator> put something in

Recognised as Colour

#4F57CD

  • #4F57CD
  • Blue
  • Dark
  • Nearest: Slate blue

#4F57CD is a blue with RGB values 79, 87, 205 and HSL 236°, 56%, 56%. It is a dark colour, so white text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Slate blue.

Colour values

#4F57CD#4F57CD
HEX#4F57CD
RGBrgb(79, 87, 205)
RGB (0–1)0.3098, 0.3412, 0.8039
RGB percentages31%, 34.1%, 80.4%
HSLhsl(236.2, 55.8%, 55.7%)
HSV / HSBhsv(236.2, 61.5%, 80.4%)
CMYK61.5%, 57.6%, 0%, 19.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,199,821
CSS custom property--colour: #4F57CD;

Brightness & contrast

Relative luminance0.12886WCAG 2.x, 0 is black and 1 is white
Perceived brightness105.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.87:1
Contrast with white5.87:1WCAG normal text: AA
Contrast with black3.58:1WCAG normal text: Fail
Greyscale equivalent#5E5E5E
Inverted#B0A832

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#006AD1no red cones; affects about 1% of men; ΔE 18.4 from the original
Deuteranopia#005FCBno green cones; the most common form, about 1% of men; ΔE 13.3 from the original
Tritanopia#007389no blue cones; rare, and affects men and women equally; ΔE 67 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.87:1WCAG large text: AAA
Contrast with black, large text3.58:1WCAG large text: AA

Named colours

Slate blue · ΔE 6.3Royal blue · ΔE 8.8Medium slateblue · ΔE 13.1Medium purple · ΔE 17.9Rebecca purple · ΔE 20.7Dark slateblue · ΔE 24.3
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 6.27, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CDC54F
Analogous#4F96CD, #864FCD
Triadic#CD4F57, #57CD4F
Split complementary#CD864F, #96CD4F
Tetradic#CD4F96, #CDC54F, #4FCD86

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EEEFFA
Lighter +30%#C6C9EF
Lighter +20%#9EA3E4
Lighter +10%#777DD8
Darker −10%#343CB5
Darker −20%#282F8E
Darker −30%#1D2266
Darker −40%#12153E
More saturated +25%#333EE9
Less saturated −25%#6B70B1

Channel breakdown

R79
G87
B205
Red79 (31%)
Green87 (34.1%)
Blue205 (80.4%)
Hue236.19°
Saturation (HSL)55.75%
Lightness55.69%
Dominant channelBlue
Hex per channelR 4F · G 57 · B CD

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “4f57cd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.